Ngaba iintsika zesitalato zelanga kufuneka zifakwe i-galvanized ebandayo okanye zifakwe i-galvanized eshushu?

Kule mihla, iikhoyili zentsimbi ze-Q235 zezona zinto zidumileyoiipali zesitalato zelangaNgenxa yokuba izibane zesitalato zelanga zichatshazelwa ngumoya, lilanga, nemvula, ubomi bazo obude buxhomekeke ekubeni zikwazi ukumelana nokugqwala. Intsimbi idla ngokufakwa i-galvanized ukuphucula oku.

Kukho iintlobo ezimbini ze-zinc plating: i-hot-dip kunye ne-cold-dip galvanizing.iipali zentsimbi ezifakwe isinyithi ezishushuZiyakwazi ukumelana nokugqwala, sihlala sicebisa ukuba sizithenge. Yintoni umahluko phakathi kwe-hot-dip kunye ne-cold-dip galvanizing, kwaye kutheni ii-hot-dip galvanizing zinokumelana nokugqwala okuphezulu? Makhe sijonge iTianxiang, umzi-mveliso odumileyo waseTshayina weepali zasesitalatweni.

1) I-Cold Galvanizing (Ekwabizwa ngokuba yi-electro-galvanizing): Emva kokususa amafutha kunye nokuqhotsa, intsimbi ifakwa kwisisombululo setyuwa ye-zinc. Isisombululo siqhagamshelwe kwi-electrode engalunganga yesixhobo se-electrolysis, kwaye ipleyiti ye-zinc ibekwa ecaleni, iqhagamshelwe kwi-electrode engalunganga. Xa umbane uvuliwe, njengoko umbane uhamba ngqo ukusuka kwi-positive ukuya kwi-electrode engalunganga, umaleko wediphozithi ye-zinc efanayo, exineneyo, nebotshelelwe kakuhle uyenzeka phezu komphezulu wombhobho wentsimbi.

2) I-hot-dip galvanizing: Umphezulu wentsimbi untywiliselwa kwi-zinc enyibilikisiweyo emva kokucocwa nokusebenza. Umaleko we-zinc yesinyithi ukhula kumphezulu wentsimbi ngenxa yempendulo ye-physicochemical phakathi kwentsimbi kunye ne-zinc kwindawo yokuhlangana. Xa kuthelekiswa ne-cold galvanizing, le ndlela ivelisa unxibelelwano oluqinileyo phakathi kwe-coating kunye ne-substrate, iphucula uxinano lwe-coating, ukuqina, ukusebenza ngaphandle kokugcinwa, kunye nokusebenza kakuhle kweendleko.

1) Indlela Yokucubungula: Amagama abo acacisa umahluko. I-Zinc efunyenwe kubushushu begumbi isetyenziswa kwimibhobho yentsimbi egalelweyo ebandayo, ngelixa i-zinc efunyenwe kwi-450°C ukuya kwi-480°C isetyenziswa kwi-hot-dip galvanizing.

2) Ubukhulu Bokugquma: Nangona ukugquma nge-cold-dip kudla ngokuvelisa ubukhulu bokugquma obuyi-3–5 μm kuphela, nto leyo eyenza ukucutshungulwa kube lula kakhulu, akunamandla okugquma. Ngokwahlukileyo koko, ukugquma nge-hot-dip kudla ngokubonelela ngobukhulu bokugquma obuyi-10μm nangaphezulu, obungamelani nokugquma ngokuphindwe kalishumi kuneepali zokukhanya ze-cold-dip galvanized.

3) Ulwakhiwo Lokugquma: Ukugquma kunye ne-substrate zahlulwe lulwahlulo lwe-compound olubuthathaka xa luthelekiswa kwi-hot-dip galvanizing. Nangona kunjalo, ngenxa yokuba ukugquma kwenziwe ngokupheleleyo yi-zinc, nto leyo ebangela ukuba kugqumeke ngokulinganayo ngemingxuma embalwa, nto leyo eyenza ukuba kungabi lula ukugquma, oku akunampembelelo ingako ekuchaseni kwayo ukugquma. Ngokwahlukileyo koko, ukugquma ngemingxuma ebandayo kusebenzisa ukugquma okwenziwe ngee-athomu ze-zinc kunye nenkqubo yokunamathela ebonakalayo enemingxuma emininzi, nto leyo eyenza ukuba igqumeke ukugquma kwendalo.

4) Umahluko kwiXabiso: Ukuveliswa kwe-hot-dip galvanizing kunzima kwaye kuyinkimbinkimbi. Ke ngoko, iinkampani ezincinci ezinezixhobo ezindala zihlala zisebenzisa i-cold-dip galvanizing, nto leyo ebangela ukuba iindleko ziphantsi kakhulu. Abavelisi be-hot-dip galvanizing abakhulu nabasele bekhulile ngokubanzi banolawulo olungcono lomgangatho, nto leyo ekhokelela kwiindleko eziphezulu.

Abanye abantu basenokuthi nokuba bayawazi umahluko phakathi kwe-cold-dip galvanizing kunye ne-hot-dip galvanizing, abakakwazi ukubona umahluko. Ezi ziindlela zokucubungula ezingabonakaliyo emehlweni. Kuthekani ukuba umrhwebi ongenankathalo usebenzisa i-cold-dip galvanizing endaweni ye-hot-dip galvanizing? Enyanisweni, akukho mfuneko yokukhathazeka. I-cold-dip galvanizing kunyeukuntywila okushushuKulula kakhulu ukwahlulahlula.

Imiphezulu egqunyiweyo ebandayo igudile, ikakhulu iluhlaza okwesibhakabhaka, kodwa eminye inokuba ne-iridescent, blue-white, okanye mhlophe enombala oluhlaza okwesibhakabhaka. Isenokubonakala imdaka okanye ingcolile. Imiphezulu egqunyiweyo eshushu, xa ithelekiswa nayo, irhabaxa kancinci, kwaye inokuba ne-zinc blooming, kodwa ibukeka ikhanya kakhulu kwaye ngokubanzi imhlophe njengesilivere. Nika ingqalelo kule mahluko.